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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic number, Mass number Atomic species

  • question_answer
    If W is atomic weight and N is the atomic number of an element, then                                   [CPMT 1971, 80, 89]

    A)                 Number of \[{{e}^{-1}}=W-N\]

    B)                 Number of \[_{0}{{n}^{1}}=W-N\]

    C)                 Number of \[_{1}{{H}^{1}}=W-N\]

    D)                 Number of \[_{0}{{n}^{1}}=N\]

    Correct Answer: B

    Solution :

                    No. of neutrons  = mass number ? no. of protons. = W ? N.


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